Product Brief Introduction
Product name: Eprinomectin
CAS: 123997-26-2
MF: C50H75NO14
MW: 914.13
Product Specification
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Appearance |
White to off-white powder |
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Identification |
IR: the infrared absorption spectrum of the sample complies with the reference standard. |
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HPLC: the retention time of B1a peak and B1b peak in the chromatogram of the assay preparation corresponds to those in the chromatogram of the standard preparation, as obtained in the assay. |
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Solubility |
It should be clear and colorless in methanol solution; no turbidity, no deeper than No.1 turbidity standard; if the color is developed, no deeper than yellow-green No.3 standard colorimetric solution. |
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Specific Rotation (on anhydrous, solvents-free, and antioxidant-free basis) |
+132.0°~ +140.0° |
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Moisture |
≤ 2.0% |
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Residue on Ignition |
≤ 0.1% |
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Antioxidant (Vitamin E) |
0.2%~0.8% |
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8a-Oxo-B1a |
≤ 0.5% |
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Related Substances |
Impurity (RRT 0.23) ≤ 1.0% |
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Impurity (RRT 0.93) ≤ 1.0% |
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Impurity (RRT 1.16) ≤ 1.0% |
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Impurity A (RRT 0.55) ≤ 1.0% |
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Impurity E (RRT 1.28) ≤ 1.0% |
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Impurity 1 (RRT 1.11) ≤ 0.5% |
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Impurity 2 (RRT 1.13) ≤ 0.5% |
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Impurity C+D (RRT 1.05) ≤ 0.5% |
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Total unspecified impurities ≤ 1.0% |
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Total impurities ≤ 5.0% |
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Heavy Metals |
≤ 10ppm |
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Residual Solvents |
Ethanol ≤ 5000ppm |
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Methanol ≤ 3000ppm |
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Di-chloromethane ≤ 600ppm |
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Acetone ≤ 5000ppm |
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Acetonitrile ≤ 50ppm |
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Toluene ≤ 890ppm |
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Benzene ≤ 2ppm |
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Sum of all solvents ≤ 5000ppm |
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Assay (on anhydrous, solvents-free, antioxidant-free basis) |
B1a ≥ 90.0% |
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B1a+B1b ≥ 95.0% |
